News tagged with fish populations
Related topics: fish
Whaling and fishing for the largest species has altered carbon sequestering in oceans
(PhysOrg.com) -- Decades of whaling and fishing for the largest species have altered the ability of oceans to store and sequester carbon, according to a team of marine researchers from the University of Maine, the University ...
Sep 06, 2010 |
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Some Canadian rivers at risk of drying up
(PhysOrg.com) -- Some Canadian rivers are at risk of drying up as impacts of climate change intersect with growing water demand from the country's cities, industries and agriculture, a new WWF report has found.
Oct 15, 2009 |
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UA 'Tsunami' Video Sheds Light on Struggling Pupfish
(PhysOrg.com) -- For the first time, an earthquake was recorded live in Devils Hole, home to the critically endangered pupfish species. The footage is educating scientists on how struggling species react to ...
May 11, 2010 |
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Researcher: Culling whales will not boost tropical fisheries
(PhysOrg.com) -- For decades there has been a controversy about whales eating fish in the tropics. The “whales eat fish” debate has been at the heart of policy decisions about the culling of whales and is ...
Feb 16, 2009 |
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Did the North Atlantic fisheries collapse due to fisheries-induced evolution?
The Atlantic cod has, for many centuries, sustained major fisheries on both sides of the Atlantic. However, the North American fisheries have now largely collapsed. A new paper in the open-access, peer-reviewed journal PLoS ON ...
May 27, 2009 |
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15,000 reasons to worry about invasive species
A day at the beach in Wisconsin's North Woods didn't used to go like this. Candy Dailey spent a Fourth of July holiday splashing with grandkids on the sandy shore of Lake Metonga when she felt a nasty sting on her foot.
Nov 09, 2009 |
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Are all alien encounters bad?
The pages of ecological history are filled with woeful tales of destruction from non-native species -- organisms that originated elsewhere.
Aug 30, 2011 |
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Five sea turtle populations are endangered
The United States issued a ruling on Friday saying that five world populations of loggerhead sea turtles are endangered species but four are only "threatened."
Sep 16, 2011 |
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Fish food fight: Fish don't eat trees after all, says new study
(PhysOrg.com) -- What constitutes fish food is a matter of debate. A high-profile study a few years ago suggested that fish get almost 50 percent of their carbon from trees and leaves, evidence for a very ...
Nov 24, 2009 |
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Pollution triggers genetic resistance mechanism in a coastal fish
For 30 years, two General Electric facilities released about 1.3 million pounds of polychlorinated biphenyls (PCBs) into New York's Hudson River, devastating and contaminating fish populations. Some 50 years ...
Feb 17, 2011 |
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'Illusion of plenty' masking collapse of two key Southern California fisheries
The two most important recreational fisheries off Southern California have collapsed, according to a new study led by a researcher from Scripps Institution of Oceanography at UC San Diego.
Sep 26, 2011 |
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You don't call, you don't write: Connectivity in marine fish populations
Children of baby boomers aren't the only ones who have taken to setting up home far from where their parents live. A new study published this week in the Proceedings of the National Academy of Sciences documents how larval ...
Mar 25, 2009 |
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Gender-bending fish on the rise in southern Alberta
Chemicals present in two rivers in southern Alberta are likely the cause of the feminization of fish say researchers at the University of Calgary who have published results of their study in the journal Environmental To ...
Jul 29, 2010 |
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Phosphorus runoff can be slowed by changing farming practices, researchers say
(PhysOrg.com) -- Two recent studies by Iowa State University researchers show that phosphorus runoff into Iowa's rivers, streams and lakes can be slowed by farmers changing how they plant and fertilize their ...
Sep 28, 2010 |
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Double jeopardy: Tuna and billfish
A new study by top global fisheries experts presents an alarming assessment of several economically important fish populations. The analysis of 61 species of "scombrids," which include tunas, bonitos, mackerels ...
Jul 25, 2011 |
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